Structure of bicycle chain transmission

Details Structure of bicycle chain transmission Structure of bicycle chain transmission

1990-07-30

1991-09-03

Luong, Vinh T.

Machine element or mechanism

Elements

Cranks and pedals

745341, 745342, G05G 114

Patent

active

050442260

ABSTRACT:
A bicycle chain transmission comprises a crank fastened in a bearing block on the outer side of a chain wheel and connected with a side projection of a ball bearing which is mounted on a connector which is eccentrically fastened in the bottom bracket axle of a bicycle. The rotation of the connector drives the ball bearing to rotate eccentrically and to drive the crank to automatically change its arm of force so as to minimize energy consumption in pedaling.

REFERENCES:
patent: 935495 (1909-09-01), Grout
patent: 4446754 (1984-05-01), Chattin
patent: 4519271 (1985-05-01), Chattin
patent: 4706516 (1987-11-01), Xi
patent: 4807491 (1989-02-01), Stuckenbrok

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